Zend certified PHP/Magento developer

Magento 2.3 Catalog Product List widget not pulling user defined field for Number of Products to Display

I have set the number of products to display to 5, however the Catalog Product List widget is displaying all products in the selected category. The “Number of Products to Display” is the only user defined field that is not working.

What file do I have to look at/modify to make sure that this variable is being read correctly?